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Frequently Asked Questions (FAQ)
Product : Granite Sinks
Topic 1 : Sink Selection
1. All RUBINE’s granite sinks can be under mount?

Not all models can be under mount but certainly some of the models can be installed both top and under. For further information, please visit any of RUBINE authorized dealers under Store Locator or get the professional verification from your purchased outlet.

2. Are there different types of granite sinks? Should you choose a granite sink opposing the stainless steel?

Granite sinks/ composite sinks are made from 80% natural granite stones and 20% acrylic resin. The combination of granite and acrylic makes for an extremely durable material and surface, beating out quartz composite or stainless steel sinks for strength and stain/ acid resistance.

For further information, please visit any of RUBINE authorized dealers under Store Locator.

Topic 2 : Granite Sink Problem & Claims
1. Will my new granite sink scratch or stain? I found scratches/ stains on my granite sink, can I claim?

The advantages of granite sink are higher resistant to scratches, stains and chips due to its durable material and non-porous surface. However, minor stains or scratches could be found on the surface shall there be any strong chemical attach or intention sharp cutting caused by man-made action. THIS IS NOT MANUFACTURING DEFECT and is violating the given warranty on stain & acid resistance.

To remove the light scratches or stains, place a small amount of WEIMAN or ASTONISH Granite Cleaner (can easily get it from amazon.com or DIY shop in town) on a damp or dry cloth. Rub onto the sink surface and clean it with the soft side of SCOTCH-BRITE. Make sure rinse thoroughly and wipe it dry with clean towel or cloth. Kindly refer to RUBINE standard maintenance tips (refer to Topic 3) to prolong the product lifespan.

If you found scratches on a new purchased sink, please do not accept your delivery order and contact the purchased outlet immediately for verification.

Kindly refer to Warranty Terms For Sanitary Fittings.

2. How to drill the tap hole on the granite sink?

All our granite sinks equipped with a half-drilled hole/ swallow ring under the sinks. For standard drilling technique, you may refer to video guide at: https://www.youtube.com/watch?v=yRM7OL42PxU.

For professional installer recommendation, please contact the purchased outlet or any RUBINE authorized dealers under Store Locator.

3. The colour of my granite sink has been faded. How would it be? Can I claim?

Granite composite sinks will not fade in colour when exposed to high heat, and they can accommodate hot pots and pans with hear resistant up to 300 Degree Celsius. However, if you spotted colour faded on the purchased granite sinks after a period of time, kindly contact the purchased outlet for warranty claim details. You may also refer to Warranty Terms For Sanitary Fittings.

If you found faded colour on a new purchased sink, please do not accept your delivery order and contact the purchased outlet immediately for verification.

4. There are missing parts from my new purchased sink. Where to claim?

Please check your goods before signing off the delivery order. Contact the purchased outlet immediately for verification.

Kindly refer to Warranty Terms For Sanitary Fittings.

5. The waste strainer or other sink accessories are spoilt or missing. Can I claim?

The accessories including waste strainer and overflow are not under warranty. However you may purchase the replacement parts from any RUBINE authorized dealers.

For further information, please visit any of RUBINE authorized dealers under Store Locator.

Topic 3 : Sink Maintenance
1. How to insure long-lasting beauty for my granite sink?

Wash your granite sink daily with a soapy nylon brush in a circular motion to help prevent stains. Dry it with dishcloth after daily use to help avoid stains from hard-water deposits.

Never use abrasive powders or pads on a granite composite sink as they will dull and scratch the surface, making it more susceptible to stains. Shall there be any misused of cleaner, warranty on stains resistance will be considered void.

Topic 5 : Couldn’t locate product serial number
Please go to Contact Us > Enquiry Form > Category: Stainless Steel Sinks > Topic: Couldn’t locate product serial number

Please upload purchased invoice jpeg under the enquiry form.

Kindly refer to Warranty Terms For Sanitary Fittings & continue your product online warranty registration via Warranty Registration.